Take Newby as an example. Open field, see Minnesota game, goodbye. Not open field, see Io_a game, cuts right into the ass of an OL instead of reading it the other way.
@kaz36 knows what I'm talking about, the rewind button got worn out on that play. Newby will test extremely well, based on pure athleticism. What the test doesn't tell us is vision and/or anticipation (see Ameer, athletic and had vision/anticipation). And without that, good luck with high production on the field.
As far as our OL, go back and look at any inside screen we ran this year. IMO, you'll see what Epley is talking about.